The invention provides a single sign-on method, device and
system oriented to
web page applications. The method includes the steps that when an executing module on a
web page acquires an event triggering login, the URL address of the current
web page is sent to local applications; the local applications send
login session information of current login users and the URL address of the web page to a browser, and the browser utilizes the
login session information and the URL address of the web page to perform automatic login. Through the single sign-on method, device and
system oriented to the web page application, when the users have access to the web page through the browser to trigger the login event, if the local applications belonging to the same login
system as the web page are in the login state, automatic login of the web page is achieved through the
login session information of the current login users of the local applications, operation of the users is simplified, and system resources are saved.